I'm guessing you are getting his ball in play statistics from fangraphs. If so, you are reading them wrong. His 23.3% IFFB rate is a percentage of his total fly balls, not total balls in play. He has hit 7 infield flies this season. If you apply his last season rate of 12%, he "should" have hit 3.6. Also, for what it's worth, he has hit 9 line drives out of 76 balls in play. Using his 16.6% rate from last season, he "should' have hit 12.6. His K rate is also about 3% higher than last year which means that he's struck out about 5 times more than he otherwise "should" have. This article shows the amount of plate appearances that it typically takes for various statistics to stabilize. We are getting close to the point where you can reasonably look at line drive rate but it would seem that we should still give him time on the rest. IFFB means basically nothing right now. Even if you assume that his current rates will stand for the entire season, his xBABIP is .243 compared to his current BABIP of .219. If you assume that his IFFB rate will normalize to last year's 12% and everything else will remain the same, his BABIP would be .271. He probably won't put up the same numbers as he did last year, but a Rickie Weeks that hits .240 still has a lot of value given his ability to take walks and hit for power. Ultimately, I think most folks are fine with him having a day off, although I'm skeptical of whether it would actually do any better than just letting him try to play through his slump.